40079369 has 4 divisors (see below), whose sum is σ = 43722960. Its totient is φ = 36435780.

The previous prime is 40079339. The next prime is 40079371. The reversal of 40079369 is 96397004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40079369 is a prime.

It is a super-2 number, since 2×40079369² = 3212711638876322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40079329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1821779 + ... + 1821800.

It is an arithmetic number, because the mean of its divisors is an integer number (10930740).

Almost surely, 2^40079369 is an apocalyptic number.

It is an amenable number.

40079369 is a deficient number, since it is larger than the sum of its proper divisors (3643591).

40079369 is a wasteful number, since it uses less digits than its factorization.

40079369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643590.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 40079369 is about 6330.8268812218. The cubic root of 40079369 is about 342.2212383587.

The spelling of 40079369 in words is "forty million, seventy-nine thousand, three hundred sixty-nine".